/*提醒语句样式*/
.tip1{
    padding: 5px;
    border-radius: 3px;
    background-color: #008000;
}
.tip2{
    padding: 5px;
    border-radius: 3px;
    background-color: #FFA500;
}
/*全局表格样式*/
.main table{
    width: 100%;
    border-collapse: collapse;
}

.main table td, .main table th{
    text-align: center;
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

tbody tr:nth-child(2n-1) {
    background-color: #f2f2f2;
}
/*超链接样式*/
.main a{
    background-color: red;
    border-radius: 8px;
    color: white;
    text-decoration: none;
    padding: 10px 25px;
    cursor: pointer;
    display: inline-block;
}